Sectional steam-generator.



No. 655,636. Patented Aug. 7, I900.

C. W. NEWTON. SECTIONAL STEAM GENERATOR (Application filed Dec. 21,1899.)

(No Model.) 2 Sheets-Sheet I.

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No. 655,636. Patented Aug. 7, I900.

C. W. NEWTON.

SECTIONAL STEAM GENERATOR.

(Application filed Dec. 21, 1899.)

(No Model.)

2 Sheets-Sheet 2.

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llivirnn STATES CHARLES WESLEY NEWTON,

PATENT o en,

OF BALTIMORE, MARYLAND.

SECTIONAL STEAM-GENERATOR.

SPECIFICATION forming part of Letters Patent N 0. 655,636, dated August7, 1960.. Application filed December 21, 1899. $erial No. 741,157. A (Nomodel.)

To all whom it may concern:

Be it known that I, OHAnLns WnsLnv NEW- TON, a citizen of the UnitedStates, residing at 1202 West Fayette street, Baltimore, in the State ofMaryland, have invented certain new and useful Improvements in SectionalSteam- Generators; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

My invention relates to that class of boilers in which are employed aseries of vertical sections, a greater or less number of sections beingemployed to provide for the steaming capacity; and one object oflnyinvention is to improve upon the construction of boilers referred towrite provide one of simple con struction in which there is a largeheating-surface and in which the products of combustion are fullyutilized.

Another object is to provide for a more complete circulation of thewater in this class of boilers and also to prevent the water from beingcarried by the steam.

My invention consists in certain novel features of construction of asectional boiler, and more particularlyin the construction andarrangement of the vertical sections provided with water-spaces uponwhich the direct rays of heat from the furnace impinge and between andaround which the heating-gases from the furnace may circulate, as willbe hereinafter fully described, and indicated in the claims.

I have shown my boiler as asteam-generator; but the same constructionmay be also used for a hot-water heating system, in which the wholeboilerwill be filled with Water.

Referring to the drawings, Figure l is a vertical section on line 5000of Fig. 2; and Fig. 2 is .a longitudinal vertical section through line y1 Fig. 1. I

As stated, the boiler consists of a series of vertical sections,all thesections being of similar construction, and the whole are inclosed in aniron casing lined with fire-brick or nonconduct-ing material and may beinclosed In the drawings, A is one of the sections, composed of a lowerangular manifold B, round in cross-section, connected to the side orcirculating tubes 0 O, the center of the manifold being higher than itsend connection with the circulating-tubes.

D D represent a second manifold which is connected to thecirculating-tubes O O. This manifold is straight and is located at aboutthe height at which the water is carried. A third manifold E, which willbe called the steam-manifold, is located above manifold D and is alsoconnected to the steam-space of the circulating-tubes O O. The manifoldE is also bent or angular, its center being below its end connection tothe circulating-tubes.

Diametrically formed on the opposite sides of the steam-manifoldE andthe circulating tubes 0 are ribs a (t and b b. When the sections are inplace, these ribs are in contact with one another, thereby forming thetops and sides of the furnace. The last section of the series is closedbetween the water-tubes by a web 0, which extends nearly down to themanifold B, and thus forming the back of the furnace and one side of thesmoke-flue. By this arrangement and in connection with thecirculatingtubes and top manifold the heat from the fire is confined inthe upper part of the furnace among the water-tubes and can only escapeby again descendingand passing under the webs c a up the smoke-flue. Theindependent section has also webs (Z d placed between the water-tubes;but they extend from one manifold to the other, and thus form the backof the smoke-flue.

The manifold B forms substantially the top of the combustion-chamber ofthe furnace, although they are spaced apart to permit the heat from thefire to circulate among the tubes.

The circulating-tubes C C extend below the manifold B and below thewater-grate F, when they are connected to the mud-drums G G. These drumsextend on each side of the boiler and are connected at their rear endsby the blow-oif pipe 'W, and the circulating-tubes of each section arealso connected to the mud-drums. The manifolds B and D are connected byinverted vertical conical water-tubes H H,nearly touching at the top,where they join the manifold.

The manifolds D and E are connected by straight tubes I I, thewater-line being below these tubes and in manifold D. 'Pipes KK, leadingfrom each of the steam-spaces of the circulating-tubes, connect themwith the steam-drum L which extends the length of the boiler and towhich each section is connected in a similar manner.

It will be seen that each section, except the two rear sections, whichform smoke-fines,

is interchangeable and independent of each' other and any can be cut outwithout disturbin g the others should they be defective.

By the construction of the sections of the boiler and their arrangement,as described, it will be seen on heat being applied to the same that adouble and free circulation will be produced in each section. Theangular manifold B conducts the water from the circulating-tubes towardthe center of the furnace, where there is the greatest heat, the waterpassing up the inverted conical tubes, when by their enlargement itexpands freely and its circulation becomes slower, thereby preventingthe water from being carried with the steam to the steam-drum. The waternow being free of the steam passes to the right and left and down eachcirculating-tube, to again come in contact with the heat of the furnace.The water as it passes down the tube precipitates any foreign matter tothe bottom of the circulating-tube, where it finds its way to themud-drum. The mud-drumis provided with its usual blow-off pipe and valveM, said pipe being connected to the p pe.

Therear section N is the sameas'the others heretofore described and isconnected to the steam and mud drums in the same manner. It is placedagainst the rear wall of the furnace and leaves a space between it andthe other sections of the boiler, which forms the fine 0, which extendsup over the top of the sections and around the steam-drum to the forwardpart of the boiler, when it joins the smoke-stack P. The manifold B ofthe rear section is also connected to the water-grate manifold Q by thepipes R R R. Each tube of the grate F is extended back of the bridgewallS and is connected by vertical pipes to the manifold Q. The tubes of theforward end of the grate are connected to a manifold T, which in turn isconnected by pipes U U to the mud-drums G G.

From the above specification it will be seen that notonly the water inthe rear section circulates through the same, but also the water;circulating through the grate.

Having thus described myinvention, what I claim as new, and desire tosecure by Letters Patent of the United States, is-- 1. In a sectionalboiler, the combination of a series of'sections, above thecombustionchamber of the furnace, each having a lower angular manifoldconverging upward, to which is connected a second manifold by conicaltubes, a downward angular converging steam-manifold connected to thesecond mani fold by straight tubes and circulating-tubes, connecting theend of all the manifolds, substantially as described.

2. In a sectional boiler, the combination of a series of sections, eachhaving a lower upward angular converging manifold, to which is connectedat second manifold by conical tubes,a downward angular converging steammanifold connected to the second manifold by vertical tubes,circulating-tubes connecting the ends of all the manifolds, and asteamdrum connected to the circulating-tubes, substantially asdescribed.

3. In a sectional boiler, the combination of a series of sections, eachconsisting of a se ries of manifolds, water-tubes and circulating-tubes,the top manifold and circulatingtubes of each section being in contact,forming the top and sides of the furnace and an independent sectionapart from and forming between it and the last section of the series, aflue for the furnace, substantially as described.

4. 111a sectional boiler, the combination of a series of seotions,withan independent back section, connected to steam and mud drums, andconnected to the manifold of a water-circulating grate, said grate alsobeing connected at its forward end to the mud-dru ms, substantially asshown and described.

5. The combination in a sectional steamgenerator of an independentback-section consisting-of the upwardly-projecting angular manifold B,the manifold D, said manifolds connected by upward'ly-enlarging tubes H,the connecting-tubes R, R, R, to the lower manifold and tubes I, I,connecting the manifold D to steam-manifold E, and steam-pipes K K, tosteam-drum L, as set forth.

6. In a sectional boiler composed of a so ries of sections with an endsection composed of manifolds and water-tubes connecting the same, ofwebs between the manifolds and water-tubes of said end section extendingnearly down to the bottom manifold, the openings forming an outlet fromthe furnace to the smoke-flue, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

CHARLES WESLEY NEWTON.

Witnesses:

OSCAR T. EARLE, WILLIAM H. BERRY.

